3 years ago

Plz explain :). Thxx

Mathematics

1 answer:

blondinia [14]3 years ago

5 0

The answer to the question is 2

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Step-by-step explanation:

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The fraction of defective integrated circuits produced in a photolithography process is being studied. A random sample of 300 ci

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Answer:

The test statistic

Z = 1.149

Since the calculated value of Z = 1.149 is less than 1.96 at 5% (0.05) level of significance.

The null hypothesis is accepted

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<u>Step-by-step explanation:</u>

Given data a random sample of 300 circuits is tested, revealing 16 defectives.

The proportion of success

$p = \frac{16}{300} =0.053$

Null hypothesis:- H₀ = P ≠0.04

Alternative hypothesis:- H₁ = P =0.04

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Level of significance ∝ =0.05

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now substitute all values, we get

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on calculation, Z = 1.149

Since the calculated value of Z = 1.149 is less than 1.96 at 5% (0.05) level of significance.

The null hypothesis is accepted .

Hence the proportion is not equal 0.04

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